Chronic Hepatitis B
Conditions
Keywords
Hepatitis B Entecavir pegylated interferon a-2a
Brief summary
The purpose of this study is to investigate whether it is possible to augment the response of patients with HBeAg-positive chronic hepatitis B to entecavir by using a temporary peginterferon alpha-2a add-on strategy
Interventions
180 μg, once per week s.c. for 24 weeks
0.5 mg once daily per os, either 72 weeks or 96 weeks
Sponsors
Study design
Eligibility
Inclusion criteria
* Chronic hepatitis B (HBsAg positive \> 6 months) * HBeAg positive, anti-HBe negative at screening * ALT \> 1.3 x ULN within 60 days prior to screening and during screening * Liver biopsy performed within 2 years prior to screening or during screening * Age \> 18 years * Written informed consent * Adequate contraception for males and females during treatment and follow up; negative pregnancy test (for women of childbearing potential)
Exclusion criteria
* Antiviral therapy against HBV within the previous 6 months * Treatment with any investigational drug within 30 days of screening * Previous treatment with lamivudine or telbivudine for more than six months * Severe hepatitis activity as documented by ALT\>10 x ULN * History of decompensated cirrhosis (defined as jaundice in the presence of cirrhosis, ascites, bleeding gastric or esophageal varices or encephalopathy) * Pre-existent neutropenia (neutrophils \< 1,500/mm3) or thrombocytopenia (platelets \< 90,000/mm3) * Co-infection with hepatitis C virus or human immunodeficiency virus (HIV) * Other acquired or inherited causes of liver disease (i.e. alcoholic liver disease, obesity induced liver disease, drug related liver disease, auto-immune hepatitis, hemochromatosis, Wilson's disease or alpha-1 antitrypsin deficiency) * Alpha fetoprotein \> 50 ng/ml * Hyper- or hypothyroidism (subjects requiring medication to maintain TSH levels in the normal range are eligible if all other inclusion/
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The combined presence of HBV DNA level < 200 IU/mL and HBeAg loss | week 48 |
Secondary
| Measure | Time frame |
|---|---|
| The emergence of HBV polymerase mutations associated with reduced susceptibility to entecavir | up to week 96 |
| Sustained response defined as the combined presence of HBV DNA level < 200 IU/mL and HBeAg loss | week 96 |
| ALT normalization | up to week 96 |
| Undetectable HBV DNA <60 IU/mL | up to week 96 |
| HBsAg and HBeAg loss from serum | up to week 96 |
Countries
China, Netherlands, Poland, Romania, Turkey (Türkiye)